The IOMMU code has been passing the dma-mask instead of the coherent_dma_mask to the iommu allocator. Coherent allocations should be made using the coherent_dma_mask.
Signed-off-by: Milton Miller <milt...@bga.com> Signed-off-by: Nishanth Aravamudan <n...@us.ibm.com> --- We currently don't check the mask other than to warn when its being set, so I don't think this is stable material. --- arch/powerpc/kernel/dma-iommu.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/arch/powerpc/kernel/dma-iommu.c b/arch/powerpc/kernel/dma-iommu.c index 6e54a0f..e755415 100644 --- a/arch/powerpc/kernel/dma-iommu.c +++ b/arch/powerpc/kernel/dma-iommu.c @@ -19,7 +19,7 @@ static void *dma_iommu_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag) { return iommu_alloc_coherent(dev, get_iommu_table_base(dev), size, - dma_handle, device_to_mask(dev), flag, + dma_handle, dev->coherent_dma_mask, flag, dev_to_node(dev)); } -- 1.7.0.4 _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev